The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 2004
Filed:
Mar. 08, 2000
Nigel M Goble, Nr Cardiff, GB;
Colin Co Goble, South Glamorgan, GB;
Gyrus Medical Limited, Cardiff, GB;
Abstract
An electrosurgical instrument, which is used for the treatment of tissue in the presence of an electrically-conductive fluid medium, comprises an instrument shaft ( ), and an electrode assembly ( ) at one end of the shaft. The electrode assembly ( ) comprises a tissue treatment electrode ( ) and a return electrode ( ) which is electrically insulated from the tissue treatment electrode by means of an insulation member ( ). The tissue treatment electrode ( ) is exposed at the distal end portion of the instrument ( ), and the return electrode ( ) has a fluid contact surface spaced proximally from the exposed end of the tissue treatment electrode by the insulation member ( ). The exposed end of the tissue treatment electrode ( ) is constituted by a plurality of tissue treatment filamentary members made of an electrically-conductive material, the filamentary members being electrically connected to a common electrical supply conductor.